Chris Hemsworth and Elsa Pataky may have an enviable relationship, but there's one thing the actor hasn't lived up to.

Speaking on the TODAY show Pataky revealed that Hemsworth had originally promised to learn her native language for her, thought he never lived up to that promise.

"He promised me that when we met. He said, 'I will be speaking Spanish in two months.' I'm like, 'I want to see that.' We've been together for six years and nothing!" she joked. "[But] he's improving - every year he learns, like, one or two words," she said.